Home / 225,711.78-338,276.07-107,419.38

Finding the Fourth Proportional to 225,711.78, 338,276.07 and 107,419.38

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Solution

The fourth proportional to 225,711.78, 338,276.07 and 107,419.38 is: 160,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,711.78 : 338,276.07 = 107,419.38 : x
  2. Step 2: Convert to fraction form
    225,711.78/338,276.07 = 107,419.38/x
  3. Step 3: Cross multiply
    225,711.78x = 338,276.07 × 107,419.38
  4. Step 4: Simplify right side
    225,711.78x = 36,337,405,708.24
  5. Step 5: Solve for x
    x = 36,337,405,708.24/225,711.78
  6. Step 6: Final answer
    x = 160,990.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.